The 844-foot Bonhomme Richard is finishing a $100 million overhaul and will undergo sea trials this summer.
— David Brooks

The amphibious assault ship Bonhomme Richard will leave dry dock Wednesday at General Dynamics NASSCO, where all of the region’s major shipyards, and dozens of sub-contractors, spent the past 4.5 months collectively repairing and upgrading one of the largest warships on the West Coast.

Tugboats will guide the 844-foot vessel to Pier 13 at Naval Base San Diego, where Bonhomme Richard will undergo more work as part of a roughly $100 million overhaul. The work includes upgrading the ship’s huge computer system, and repositioning the center-line on the landing deck to enable the “Bonnie’’ to handle the Joint Strike Fighter and MV-22 Osprey aircraft.

Here are some numbers that sum up the overhaul of Bonhomme Richard:

1,400 workers: Peak employment at NASSCO during overhaul of the ship. The number includes NASSCO and its sub-contractors.

100 tons: Amount of steel added to the vessel, largely to prepare Bonhomme Richard to accommodate the Joint Strike Fighter and Osprey.

9,000 gallons: Paint applied between the keel and the flight deck.

3 miles: Amount of pipe replaced or added to the ship to improve everything from propulsion to plumbing

1 mile: Amount of cable that was installed, much of it to upgrade the ship’s computer systems

3,000: Sleeping mattresses were removed and inspected. Many of the mattresses were replaced

111: Access holes cut into the hull to enable sandblasters, painters and support workers to climb into hard-to-reach areas.

2: 15-ton propellers were removed and inspected for cracks and wear. The inspection was done by Pacific Maritime Propellers, a San Diego sub-contractor.